#导入sys模块
import sys
print('================Python import mode==========================');
print('命令行参数为:')
for i in sys.argv:
    print(i)
print('\n python 路径为', sys.path)

from sys import argv, path  # 导入特定的成员

print('================python from import===================================')
print('path:', path)  # 因为已经导入path成员，所以此处引用时不需要加sys.path
print('path:', argv)
help(max)       # 注意，doc的前后分别是两个下划线
print(max.__doc__)